Rectangular sold-fired coke oven



Jul 12 1927. y A. s. KNOWLES. ET m.

RECTANGULAR SOLE FIRED'COKE OVEN Filed Sept. 1. 1925 4 Sheets-Sheet 1 v BY ATTORNEY 1927 A. s. KNOWLES ET AL RECTANGULAR SOLE FIRED COKE OVEN Filed Sept. 1. 1925 4 Sheets-Sheet 4 lNV NTOR5 ATTORNEY- Patented July 12, 1927.

UNITED STATES PATENT OFFICE.

ALEXANDER s. KNowLEs, OF NEW YORK, N. Y., AND cHARLEs v. McINTIRE, or EAsT ORANGE, NEW JERSEY, ASSIGNORS To TAR & PETRQL UM PROCESS comPANY, 0E eEIcAeo, ILLINoIs, A CORPORATION 0E ILLINOIS.

RECTANGULAR soLE-EI En ooKE ovEN.

Application filed September 1, 1925. Serial No. 53,888.

Our invention relates to rectangular coke ovens heated by a pluralityof independent sole flues extending beneath the sole of the oven and more particularly to such an oven in which a plurality of regenerators are alternately employed, two for each flue, thereovens, the admission of atmospheric air into brick (i.

the charge, is excluded and the by-products and coke are obtained from the coal by heating the broad sole of the oven.

One of the objects of the invention is to provide a rectangular, sole-fired coke oven in which separate parallel and adjacent. sole combustion flues are used for heating the oven chamber and in which the air may be preheated and supplied periodically, at intervals, by means of regenerators.

Another object of the invention is to provide each flue with its own regenerator separate and independent from the others, thus making the operation and regulation of the heated air supplied, convenient and easy and increasing the heat economy. Moreover, by this provision of an individual regenerator for each flue of the sole of the oven, no difficulty is experienced in-increasing' the number of flues to accommodate a wider oven sole.

With the above and other objects in view, our invention consists in the parts, improvements and combinations more fully pointed out hereinafter.

Referring now to the drawings, which i1- lustrate one embodiment of the lnvention:

Figure 1 is a top plan view of a sole-fired rectangular coke oven, constructed in accordance with our invention.

Figure 2 is a horizontal section of such an oven on line 2-2 of Figure 4.

Figure 3 is a horizontal section of the oven on line 3-3 of Figure 4.

Figure 4L is a vertical, longitudinal section on line H of Figure 1.

Figure 5 is a transverse, vertical section on line 5-5 of Figure 2.

Figure 6 is a vertical, longitudinal sectional detail, showing the front of the oven. Figure 7 1s a front elevation of the lower part of Figure 6, and t Figure 8 is a horizontal, transverse, sectional View thru'the section of the regenerators shown in Figure 5.

In the drawings, 1, indicates the flat tops of the oven, supplied with charging openings 2, for supplying coal to the oven, the by-products of gas being taken off by standpipe 3. Each front of the oven chamber is provided with a door 4, 5, which, when opened, permits the removal of the coke by means of a suitable pusher.

The top of the oven is covered with paving The inside of the chamber of the oven is provided with fire brick 7, over which mav be placed red brick 8, there being a suitable filling material 9, placed on top of the brick 8, on which the paving brick rests.

Under each oven sole extends a plurality of separate and independent combustion' flues 10. The sole of the oven chamber includes the top of the combustion flues and comprises a plurality of silica bricks 11, with feet 12, resting on the partition walls 13, between the flues. Thesiliea bricks are provided with grooves 14, and the joints between them provide spaces which are filled with cement when the bricks are laid. A layer or layers of silica brick 15, extends transversely between the bottoms of the combustion fines and the regenerators of the oven, thus taking up the heat from the lines and supplying it in part to the regenerators. Expansion joints 16, permit expansion of the silica brick layers.

In accordance with our invention, we provide a plurality of air regenerators for preheating the air supplied to the combustionflues, there being, in the best embodiment of the invention, two hairpin regenerators which alternately and periodically supply air toand receive the products of combustion from, each heating flue. These air regenerators 17, 18, 19, 20, 21, 22, 23, 24, 25, 2c,

are provided with a regenerator checkerwork 27, and each regenerator comprises aheat discharge pipes 32', are also provided controlled by slide dampers 32. Gas is supplied to the combustion flues by separate gas pipes 33, two for each combustion flue. Preheated air reaches the combustion fiue from its regenerator thru port 34, see Fig. 6, the amount of opening of the port being adjustable by slide brick 35. Removable brick 36, in front of the slide brick permits adjustment of the latter. Inspection ports 37, having removable plugs 38 permit the inspection of the regenerators.

The waste heat discharge pipes 32, are connected at each front of theoven by means of conduit 39, to the stack 40, running to the chimney. A regulating damper 41, controls iii) the fiow to the chimney and dampers 42, 43, one in each conduit 39, are provided so that the healing of the oven may be reversed.

Having thus described the invention, its operation will be clear. Air and gas are admitted at one front of the oven, the air passing thru the regenerator and the flan-1e passing thru the conduit underneath the'oven sole and then on its way out by means of the conduit atthe opposite tare ot' the oven, as shown for example in Fig. 4. Independent regulation of air and gas is thus secured for each sole fine. The escape of the heat is controlled by damper 42, damper 43, being then closed. On reversal of the oven, damper 42, is closed and damper 43, open. Air and gas will then enter at the left of Fig. 4, air entering thru openings 31 It'will be understood that changes may be made in carrying the invention into effect, without departing from the principle of the invention.

lVhat we claim is:

1. In a horizontally elongated, rectangular, sole-fired coke oven with an oven chamber adapted to be sealed against the admission of air, the combination of a plurality of combustion fines arranged side by side underneath the sole of the oven for heating it, a regenerator connected with each end of each of said fines, for supplying preheated air to opposite ends of each of said fines and a gas supplying means at each end of each of said fines, for supplying each fine with gas at opposite ends thereof.

2. In a horizontally elongated, rectangular, sole-fired, coke oven, with an oven chamber adapted to be sealed against the admission of air, the combination of a plurality of combustion fines arranged side by side underneath the sole of the oven for heating it,

the said fines extending the entire length of the oven, regenerators extending below said fines for supplying preheated air to each end of each fine and a gas supply means at each end of each of said fines, for supplying each of the fines with gas at opposite ends thereof.

being two of said hair pin regenerators for each flue and gas supplying means at'each end of each of said fines, for supplying each of the fines with gas at opposite endsthereot'.

4. In a horizontally elongated, rectangular, sole-fired coke oven with an ovenchain-- ber adapted to be sealed against the admis-' sion of air, the combination of a plurality of combustion fines arranged parallel and side by side underneath the sole ofthe oven for heating it, a regenerator connected with each end of each of said fines, means for al-- ternately supplyingair to the saidregenerators at the opposite ends of said fines and gas supplying means ateaeh end of each of said fines, for supplying each of the fiues with gas at opposite ends thereof.

.5. In a horizontally elongated, rectangu- "lar, sole-fired coke oven with an oven chamber adapted to be sealed against the admission of air, the combination of a plurality of combustion flues arranged underneath the sole of the oven for heating it, a plurality of regenerators for alternately supplying preheated air to opposite ends of each of said fines and gas supplying means for supplying each of" the fines with gas'at opposite ends thereof.

In testimony whereof, we have signed our names to this specification.

ALEXANDER S. KNOIVLES. CHARLES V. MGINTIRE. 

